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Finding the Fourth Proportional to 3,669,655.70, 5,505,139.65 and 1,539,955.10

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Solution

The fourth proportional to 3,669,655.70, 5,505,139.65 and 1,539,955.10 is: 2,310,207.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669,655.70 : 5,505,139.65 = 1,539,955.10 : x
  2. Step 2: Convert to fraction form
    3,669,655.70/5,505,139.65 = 1,539,955.10/x
  3. Step 3: Cross multiply
    3,669,655.70x = 5,505,139.65 × 1,539,955.10
  4. Step 4: Simplify right side
    3,669,655.70x = 8,477,667,880,229.72
  5. Step 5: Solve for x
    x = 8,477,667,880,229.72/3,669,655.70
  6. Step 6: Final answer
    x = 2,310,207.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.